Decorative housing and luminous exteriors that can create a three-dimensional luminous effect

Abstract

The utility model relates to an automobile exterior, and specifically to a decorative shell and a luminous exterior that can form a three-dimensional luminous effect. The decorative shell includes a bearing body and an A-surface film sheet and a B-surface film sheet compounded on both sides of the bearing body; the A-surface film sheet includes: a decorative layer formed on a first base layer, and the gaps in the decorative layer constitute a first pattern area; a first coating layer is formed on the decorative layer and filled in the first pattern area of ​​the decorative layer; a first transparent layer is formed on the first coating layer; the B-surface film sheet includes: a second coating layer formed on a second base layer; a second transparent layer is formed on the second coating layer; a shielding layer is formed on the second transparent layer, and the gaps in the shielding layer constitute a second pattern area. Compared with the prior art, the utility model solves the problem of single luminous properties of the exterior decoration products in the prior art. The solution achieves a three-dimensional luminous effect of multiple overlapping shadows and front and rear depth of field through the design of a multi-layer structure.

Description

Technical Field

[0001] The utility model relates to an automobile exterior, in particular to a decorative shell and a luminous exterior which can form a three-dimensional luminous effect. Background Art

[0002] With the continuous development of exterior products, lighting accessories are increasingly being used in exterior products, such as luminous logos, grilles, and accessories.

[0003] At present, there are two main types of lighting solutions:

[0004] a) Semi-hidden ( Figure 1 ), the surface is made of a combination of translucent paint / translucent ink and decorative ink as a decorative layer, and then LED light-emitting devices are arranged to obtain a product solution that is used as decoration when not lit and locally emits light when lit;

[0005] b) (Full) Hidden ( Figure 2 ), generally adopts semi-transparent smoked black or integral light-transmitting PVD surface treatment, combined with internal partial shading coating or structure, to obtain a product solution that is an integrated decoration when not lit and partially luminous when lit.

[0006] However, since exterior luminous products generally only use surface treatment with decorative effects, they are different from the transparent outer cover and internal three-dimensional optical structure design of lamps. The luminous effects of exterior products are all single planar luminous effects, which are only two-dimensional effects. They can only rely on dynamic water flow effects to form effect differences, and are currently unable to produce highly three-dimensional optical effects.

[0007] Therefore, in order to meet customer needs and form a three-dimensional luminous effect with multiple overlapping shadows and front and back depth of field, it is necessary to further improve the structure of the decorative shell. Utility Model Content

[0008] The purpose of the present utility model is to solve at least one of the above problems and to provide a decorative shell and luminous exterior that can form a three-dimensional luminous effect, so as to overcome the shortcomings of the existing exterior decoration products that are single-light and all surface-lighting. This solution, through the design of a multi-layer structure and the principle of double mirrors and multiple reflections, realizes a three-dimensional luminous effect with multiple overlapping shadows and front and back depth of field, which can give the exterior a more attractive decorative effect.

[0009] The purpose of the utility model is achieved through the following technical solutions:

[0010] The first aspect of the utility model discloses a decorative shell capable of forming a three-dimensional luminous effect, comprising a carrying body and an A-surface mask sheet and a B-surface mask sheet compounded on both sides of the carrying body;

[0011] The A-side mask sheet comprises a first base layer, a decorative layer, a first coating layer and a first transparent layer stacked in sequence; the decorative layer is formed on the first base layer, and the gaps in the decorative layer constitute a first pattern area; the first coating layer is formed on the decorative layer and fills the first pattern area of ​​the decorative layer; the first transparent layer is formed on the first coating layer;

[0012] The B-side film comprises a second base layer, a second coating layer, a second transparent layer and a shielding layer stacked in sequence; the second coating layer is formed on the second base layer; the second transparent layer is formed on the second coating layer; the shielding layer is formed on the second transparent layer, and the gaps in the shielding layer constitute the second pattern area.

[0013] Among them, after the A-side membrane sheet is compounded on the carrier body, the first base layer is on the outside; after the B-side membrane sheet is compounded on the carrier body, the shielding layer is on the outside.

[0014] Preferably, the first base layer and the second base layer are both PC films.

[0015] Preferably, the material of the carrier body is PC.

[0016] Preferably, the materials of the first coating layer and the second coating layer include indium and aluminum.

[0017] Preferably, the lines of the first pattern area and the second pattern area at corresponding positions of the patterns have a width difference.

[0018] Preferably, the line width of the first pattern area is 8-12 mm, and the line width of the second pattern area is 2-5 mm.

[0019] Preferably, in the A-side film, a combination of the decorative layer, the first coating layer and the first transparent layer constitutes an A-side pattern layer, and the A-side pattern layer is stacked and provided with a plurality of layers.

[0020] Preferably, in the B-side film, a combination of the second coating layer, the second transparent layer and the shielding layer constitutes a B-side pattern layer, and the B-side pattern layer is stacked and provided with a plurality of layers.

[0021] The second aspect of the utility model discloses a method for preparing a decorative shell capable of forming a three-dimensional luminous effect as described above, comprising the following steps:

[0022] S1: Preparation of semi-finished product of face mask sheet A: printing a decorative layer on the surface of the first substrate layer by screen printing to form a first pattern area, performing PVD treatment on the first substrate layer to form a first coating layer, and then printing transparent ink on the surface of the first coating layer to form a first transparent layer, thereby obtaining a semi-finished product of face mask sheet A;

[0023] S2: Preparation of a semi-finished product of the B-side diaphragm: performing PVD treatment on the surface of the second substrate layer to form a second coating layer, printing a transparent ink on the surface of the second coating layer to form a second transparent layer, and then printing a shielding layer on the surface of the second transparent layer by screen printing to form a second pattern area, thereby obtaining a semi-finished product of the B-side diaphragm;

[0024] S3: High-pressure forming is performed on the semi-finished film sheet of side A and the semi-finished film sheet of side B, and then the redundant structures are punched out to obtain two films with shapes respectively; the redundant structures punched out here are redundant process flanges, thereby ensuring that the two films can be placed in the mold in the subsequent steps;

[0025] S4: Subsequently, the two membranes are placed in a mold for injection molding to obtain the decorative shell.

[0026] The third aspect of the utility model discloses a luminous exterior, comprising an optical module and a decorative shell capable of forming a three-dimensional luminous effect as described above, wherein the optical module is assembled in the decorative shell.

[0027] The working principle of the utility model is:

[0028] The first coating layer in the A-side film and the second coating layer in the B-side film can form a double-mirror, multiple-reflection structure, thereby enabling the light emitted from the inside or the inner side to produce a variety of light phenomena, thereby obtaining a three-dimensional luminous effect with multiple overlapping shadows and front and back depth of field.

[0029] Compared with the prior art, the utility model has the following beneficial effects:

[0030] The purpose of this patent is to innovatively provide an automotive exterior product with a new luminous effect.

[0031] The solution described in this patent can innovatively utilize the principle of multiple reflections of double mirrors to obtain a three-dimensional luminous effect with multiple overlapping shadows and front and back depth of field, giving the lighting exterior a more attractive decorative effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the cross-sectional structure of a decorative shell of a semi-hidden lighting solution in the prior art;

[0033] Figure 2 It is a schematic diagram of the cross-sectional structure of a decorative shell of a (fully) hidden lighting solution in the prior art;

[0034] Figure 3 It is a schematic diagram of the structure explosion of the decorative shell of the utility model;

[0035] Figure 4 It is a schematic diagram of the cross-sectional structure of the decorative shell of the utility model;

[0036] In the figure, 1-first base layer; 2-decorative layer; 3-first coating layer; 4-first transparent layer; 5-carrying body; 6-second base layer; 7-second coating layer; 8-second transparent layer; 9-shielding layer. DETAILED DESCRIPTION

[0037] The utility model is described in detail below with reference to the accompanying drawings and specific embodiments.

[0038] In the following description, unless otherwise specified, the materials used are conventional commercially available products, and the methods used are those known in the art.

[0039] like Figure 1 As shown, it is a decorative shell of a semi-hidden lighting solution in the prior art, and its main structure is a PC film on the surface, light-transmitting ink and decorative ink printed on the PC film (together forming a pattern layer), and a PC substrate as the main body of the product, which is generally realized by the process of first printing and then blister forming and IML.

[0040] like Figure 2 As shown in the figure, it is a decorative shell of a (fully) hidden lighting solution in the existing technology. Its main structure is generally formed by two-color injection molding: the first shot is a PC substrate as a light-transmitting layer, and the second shot is a PC / ABS substrate as a connecting structure and a light-shielding layer; then a layer of PVD coating is deposited on the surface of the PC substrate of the product, and finally a layer of protective paint such as HC (hard coating) hardened paint is sprayed on the surface of the PVD as a protective layer.

[0041] However, no matter it is a semi-hidden lighting solution or a (fully) hidden lighting solution, the decorative shell under both structures can only form a surface lighting effect, and does not have a three-dimensional lighting effect.

[0042] Example

[0043] A decorative shell capable of forming a three-dimensional luminous effect, such as Figure 3 , 4 As shown, it includes a carrier body 5 and an A-surface membrane sheet and a B-surface membrane sheet compounded on both sides of the carrier body 5;

[0044] The A-side mask sheet comprises a first base layer 1, a decorative layer 2, a first coating layer 3 and a first transparent layer 4 stacked in sequence; the decorative layer 2 is formed on the first base layer 1, and the gaps in the decorative layer 2 constitute a first pattern area; the first coating layer 3 is formed on the decorative layer 2 and fills the first pattern area of ​​the decorative layer 2; the first transparent layer 4 is formed on the first coating layer 3;

[0045] The B-side film comprises a second base layer 6, a second coating layer 7, a second transparent layer 8 and a shielding layer 9 stacked in sequence; the second coating layer 7 is formed on the second base layer 6; the second transparent layer 8 is formed on the second coating layer 7; the shielding layer 9 is formed on the second transparent layer 8, and the gaps in the shielding layer 9 constitute a second pattern area.

[0046] More specifically, in this embodiment:

[0047] like Figure 3 It is a schematic diagram of the exploded structure of the decorative shell of this solution, which includes a central supporting body 5 and an A-surface membrane sheet and a B-surface membrane sheet compounded on both sides of the supporting body 5. The supporting body 5 is PC injection molded.

[0048] Specific as Figure 4 shown.

[0049] The A-surface diaphragm includes a first base layer 1, a decorative layer 2, a first coating layer 3 and a first transparent layer 4. The first base layer 1 is a PC diaphragm, on which decorative ink is printed by screen printing to form a decorative layer 2 with a first pattern area, and further processed by PVD process on one side of the decorative layer 2 so that the first pattern area is filled and a first coating layer 3 is formed on the surface of the decorative layer 2 (the outer surface of the first coating layer 3 is flush), and finally a layer of transparent ink is printed on the first coating layer 3 to form a first transparent layer 4, that is, to form the A-surface diaphragm. Among them, the color of the decorative layer 2 (decorative ink) can be consistent with the vehicle body, or transparent ink can be directly used, or, in some cases, the decorative layer 2 can be omitted, and a certain blocking member is used to occupy the position during production and preparation to form the required first pattern area.

[0050] The B-side film comprises a second base layer 6, a second coating layer 7, a second transparent layer 8 and a shielding layer 9. The second base layer 6 is a PC film, one side of which is processed by a PVD process to form a second coating layer 7, and then a layer of transparent ink is further printed thereon to form a second transparent layer 8, and finally a shielding layer 9 with a second pattern area is formed on the second transparent layer 8 by screen printing, thus forming the B-side film.

[0051] After the A-side film is compounded on the carrier body 5 , the first base layer 1 is on the outside; after the B-side film is compounded on the carrier body 5 , the shielding layer 9 is on the outside.

[0052] For the first base layer 1 and the second base layer 6 in the A-surface mask sheet and the B-surface mask sheet, PC films can be used, and usually PC films with a thickness of 0.5 mm can be selected.

[0053] For the first coating layer 3 and the second coating layer 7 in the A-side mask and the B-side mask, indium plating, aluminum plating or other metal materials can be used. In some embodiments, metal films can also be used, such as products from Japan's Toray, which can also achieve this kind of mirror effect.

[0054] The first pattern area and the second pattern area can usually be designed as similar patterns with different line widths, such as Figure 3 In the example shown in , the shield shape and text style of the A-side mask are thicker than those of the B-side mask, and the edge width of the first pattern area in the A-side mask is controlled to be 8-12mm, and the edge width of the second pattern area in the B-side mask is controlled to be 2-5mm. In this embodiment, the edge width of the first pattern area in the A-side mask is controlled to be 8mm, and the edge width of the second pattern area in the B-side mask is controlled to be 2mm; thus, under the condition that there is a width difference between the two layers of patterns, it can be ensured that the overlapping effect is presented in a larger field of view.

[0055] The decorative shell is prepared by the following method:

[0056] Step 1: Preparation of the A-side mask: Print the decorative ink on one side of the polycarbonate (PC) film by screen printing to print the required pattern, wherein a local area in the screen printing screen is hollowed out, and the non-hollowed-out part of the screen printing screen is not printed with ink to form the first pattern area, such as the middle character width of about 8-12mm, and the hollowed-out part of the screen printing screen is normally printed with several ink-matched decorative patterns to form the decorative layer 2, and light cannot pass through these areas printed with ink. Then, the surface of the partially ink- and partially transparent decorative layer 2 just obtained is subjected to the entire PVD process to form the first coating layer 3; then, a layer of transparent ink is printed on the PVD film layer to form the first transparent layer 4 for protection, thereby obtaining the A-side mask with a metallic effect and a certain light transmittance in the character area when viewed from the front.

[0057] Step 2: Preparation of the B-side film: Perform PVD treatment on the entire surface of one side of the polycarbonate (PC) film to obtain the second coating layer 7, and then print a layer of transparent ink after the coating is completed. Finally, use screen printing to print a hollow pattern with a second pattern area to form a shielding layer 9, in which the character width is about 2-5mm. This layer of shielding ink is only a layer of opaque ink, and no color combination is required.

[0058] Step 3: The printed A and B-side polycarbonate films are respectively formed into films with product shapes by a high-pressure preforming method.

[0059] Step 4: Cut the formed diaphragm and remove the excess process flange to ensure that the diaphragm can be placed normally in the mold core and cavity.

[0060] Step 5: Place the two cut films as inserts into the mold, fill them with polycarbonate material for injection molding, and obtain a 3D decorative shell with a character-shaped metal film layer on both the front and back of the product.

[0061] Step 6: Further combine the decorative shell with the back cover and the optical module to obtain a luminous exterior product with luminous pattern characters and multiple overlapping shadows.

[0062] The decorative shell can be further expanded to obtain multi-layer patterns and multi-layer overlapping effects, thereby obtaining a more complex three-dimensional luminous effect. Specifically, for the A-side film, a plurality of A-side pattern layers composed of a decorative layer 2, a first coating layer 3 and a first transparent layer 4 are provided, and are stacked and compounded in sequence; for the B-side film, a plurality of B-side pattern layers composed of a second coating layer 7, a second transparent layer 8 and a shielding layer 9 are provided, and are stacked and compounded in sequence. Among them, the multi-layered A-side pattern layers and the B-side pattern layers can form patterns of different shapes and structures according to the design, and finally a three-dimensional luminous effect with a three-dimensional design can be obtained.

[0063] In addition, after the decorative shell is assembled to form a luminous exterior product, it can also cooperate with the optical module's own shading bracket to form more types of pattern designs; and the optical module can be arranged behind the decorative shell using conventional LED light-emitting devices, and the optical module can also be stacked and combined into the decorative shell in a light-guiding manner (that is, a light-guiding layer can be further inserted as needed based on the structure of the proposed decorative shell).

[0064] In summary, the utility model innovatively provides an automobile exterior product with a new luminous effect, which can innovatively utilize the principle of multiple reflections of double mirrors to obtain a three-dimensional luminous effect with multiple overlapping shadows and front and rear depth of field, giving the luminous exterior a more attractive decorative effect.

[0065] The above description of the embodiments is to facilitate the understanding and use of the utility model by those skilled in the art. It is obvious that those familiar with the art can easily make various modifications to these embodiments and apply the general principles described herein to other embodiments without creative work. Therefore, the utility model is not limited to the above embodiments, and improvements and modifications made by those skilled in the art based on the disclosure of the utility model without departing from the scope of the utility model should be within the scope of protection of the utility model.

Claims

1. A decorative shell capable of forming a three-dimensional luminous effect, characterized in that: It includes a carrier body and an A-surface membrane sheet and a B-surface membrane sheet compounded on two sides of the carrier body; The A-side mask sheet comprises a first base layer, a decorative layer, a first coating layer and a first transparent layer stacked in sequence; the decorative layer is formed on the first base layer, and the gaps in the decorative layer constitute a first pattern area; the first coating layer is formed on the decorative layer and fills the first pattern area of ​​the decorative layer; the first transparent layer is formed on the first coating layer; The B-side film comprises a second base layer, a second coating layer, a second transparent layer and a shielding layer stacked in sequence; the second coating layer is formed on the second base layer; the second transparent layer is formed on the second coating layer; the shielding layer is formed on the second transparent layer, and the gaps in the shielding layer constitute the second pattern area.

2. The decorative housing capable of forming a three-dimensional luminous effect according to claim 1, characterized in that: The first base layer and the second base layer are both PC films.

3. The decorative housing capable of forming a three-dimensional luminous effect according to claim 1, characterized in that: The material of the bearing body is PC.

4. The decorative housing capable of forming a three-dimensional luminous effect according to claim 1, characterized in that: The lines of the first pattern area and the second pattern area at corresponding positions of the patterns have a width difference.

5. The decorative housing capable of forming a three-dimensional luminous effect according to claim 4, characterized in that: The line width of the first pattern area is 8-12 mm, and the line width of the second pattern area is 2-5 mm.

6. The decorative housing capable of forming a three-dimensional luminous effect according to claim 1, characterized in that: In the A-surface film, the combination of the decorative layer, the first plating layer and the first transparent layer constitutes the A-surface pattern layer, and the A-surface pattern layer is stacked and arranged in a plurality of layers.

7. The decorative housing capable of forming a three-dimensional luminous effect according to claim 1, characterized in that: In the B-side film, the combination of the second coating layer, the second transparent layer and the shielding layer constitutes a B-side pattern layer, and the B-side pattern layer is stacked and arranged in a plurality of layers.

8. The decorative housing capable of forming a three-dimensional luminous effect according to claim 1, characterized in that: After the A-surface membrane sheet is compounded on the carrier body, the first base layer is on the outside; after the B-surface membrane sheet is compounded on the carrier body, the shielding layer is on the outside.

9. A luminous exterior, characterized in that: It comprises an optical module and a decorative shell capable of forming a three-dimensional luminous effect as described in any one of claims 1 to 8, wherein the optical module is assembled in the decorative shell.

Images